1. Historical résumé of the evolution and growth of orthodontics;Weinberger,1955
2. Classification of malocclusion;Angle;Dental Cosmos,1899
3. Classification of malocclusion;Angle;Dental Cosmos,1899
4. Techniques and principles of dental orthopedia;Case,1963
5. Report of the Committtee on Orthodontic Classification;Bennett;Oral Health,1912